VMs not able to reach qtinfluxdb01.intra.qt.io:8086

The VMs monitoring data is missing, and in telegraf-coin.log I see the message:

{{
2020-04-20T12:20:29Z E! [agent] Error writing to outputs.influxdb: could not write any address
2020-04-20T12:20:35Z E! [outputs.influxdb] when writing to https://qtinfluxdb01.intra.qt.io:8086: Post https://qtinfluxdb01.intra.qt.io:8086/write?db=coin_vms: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
}}